Heating apparatus



FIG. 1 is a perspective view of a heating apparatus according to our new design;

FIG. 2 is a front elevation view of the heating apparatus of FIG. 1,

FIG. 3 is a rear side elevation view of the heating apparatus of FIG. 1,

FIG. 4 is a top view of the heating apparatus of FIG. 1,

FIG. 5 is a bottom view of the heating apparatus of FIG. 1; and,

FIG. 6 is a left side elevation view of the heating apparatus of FIG. 1, the right side elevation view being a mirror image thereof.

The broken lines showing in the Figures are included for the purpose of illustrating environment of the design and form no part of the claimed design. 

The ornamental design for a heating apparatus, as shown and described. 